California earthquakes

M1.9 earthquake 6 km WSW of Cobb, California

A magnitude 1.9 earthquake struck 6 km WSW of Cobb, California on Thu, Feb 25, 1988, 8:59 AM PST (16:59 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.6 8 km E of Willits, California. This one was a foreshock.

Cobb forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1988-02-25 16:59:24 UTC
Depth
3.7 km (2.3 mi), shallow
Epicenter
38.808° N, 122.793° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.2 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
61°
Stations used
15

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 155 in the 60 days after this one and 92 in the 30 days before it.

After

  1. 2.98 km WSW of Cobb, California · 14098 days ago · 3 km deep · 2 km away
  2. 1.58 km SW of Cloverdale, California · 14098 days ago · 5 km deep · 27 km away
  3. 2.0near the coast of Northern California · 14098 days ago · 0 km deep · 27 km away
  4. 1.79 km SW of Cloverdale, California · 14097 days ago · 5 km deep · 26 km away
  5. 1.56 km W of Cobb, California · 14097 days ago · 1 km deep · 1 km away
  6. 2.16 km W of Cobb, California · 14096 days ago · 4 km deep · 1 km away
  7. 2.17 km W of Cobb, California · 14096 days ago · 4 km deep · 1 km away
  8. 1.616 km SW of Cloverdale, California · 14096 days ago · 5 km deep · 34 km away
  9. 1.9near the coast of Northern California · 14095 days ago · 7 km deep · 47 km away
  10. 2.018 km NE of Potter Valley, California · 14095 days ago · 6 km deep · 71 km away
  11. 2.218 km NNW of Cazadero, California · 14094 days ago · 2 km deep · 35 km away
  12. 1.55 km SW of Cobb, California · 14094 days ago · 0 km deep · 2 km away
  13. 1.64 km WNW of Cobb, California · 14093 days ago · 2 km deep · 4 km away
  14. 1.67 km W of Cobb, California · 14092 days ago · 3 km deep · 2 km away
  15. 1.97 km E of Hopland, California · 14092 days ago · 4 km deep · 28 km away
  16. 1.58 km WSW of Cobb, California · 14091 days ago · 0 km deep · 2 km away
  17. 1.6Northern California · 14091 days ago · 1 km deep · 4 km away
  18. 2.45 km WSW of Cobb, California · 14091 days ago · 0 km deep · 2 km away
  19. 1.710 km NNE of Angwin, California · 14091 days ago · 4 km deep · 37 km away
  20. 1.723 km NNE of Upper Lake, California · 14090 days ago · 10 km deep · 62 km away
  21. 1.814 km SW of Cloverdale, California · 14088 days ago · 8 km deep · 31 km away
  22. 2.71 km NW of Redwood Valley, California · 14088 days ago · 1 km deep · 63 km away
  23. 1.910 km W of Cloverdale, California · 14088 days ago · 1 km deep · 30 km away
  24. 1.56 km W of Cobb, California · 14087 days ago · 3 km deep · 1 km away
  25. 1.8Northern California · 14087 days ago · 0 km deep · 0 km away
  26. 1.87 km W of Cobb, California · 14087 days ago · 4 km deep · 2 km away
  27. 2.18 km WSW of Cobb, California · 14087 days ago · 3 km deep · 2 km away
  28. 2.17 km W of Cobb, California · 14086 days ago · 4 km deep · 2 km away
  29. 2.70 km SSE of Larkfield-Wikiup, California · 14086 days ago · 1 km deep · 33 km away
  30. 1.92 km SW of Glen Ellen, California · 14085 days ago · 9 km deep · 56 km away
  31. 3.06 km W of Cobb, California · 14085 days ago · 4 km deep · 1 km away
  32. 1.86 km WNW of Cobb, California · 14085 days ago · -1 km deep · 3 km away
  33. 1.64 km SW of Cobb, California · 14085 days ago · 1 km deep · 3 km away
  34. 1.66 km W of Cobb, California · 14085 days ago · 3 km deep · 2 km away
  35. 1.95 km WNW of Cobb, California · 14085 days ago · 1 km deep · 3 km away
  36. 1.67 km W of Cobb, California · 14084 days ago · 3 km deep · 2 km away
  37. 1.55 km WSW of Cobb, California · 14083 days ago · 1 km deep · 1 km away
  38. 1.55 km NE of Hopland, California · 14083 days ago · 3 km deep · 32 km away
  39. 1.97 km WSW of Cobb, California · 14083 days ago · 0 km deep · 2 km away
  40. 2.14 km WNW of Cobb, California · 14083 days ago · 3 km deep · 3 km away
  41. 1.55 km W of Cobb, California · 14083 days ago · 0 km deep · 1 km away
  42. 1.76 km W of Cobb, California · 14083 days ago · -1 km deep · 1 km away
  43. 1.623 km NNE of Upper Lake, California · 14082 days ago · 12 km deep · 62 km away
  44. 1.66 km NNW of Geyserville, California · 14081 days ago · 3 km deep · 12 km away
  45. 1.77 km W of Cobb, California · 14081 days ago · 3 km deep · 1 km away
  46. 2.55 km SSW of Cobb, California · 14081 days ago · 1 km deep · 5 km away
  47. 1.75 km SSW of Cobb, California · 14081 days ago · 1 km deep · 5 km away
  48. 3.519 km NNE of Potter Valley, California · 14081 days ago · 4 km deep · 79 km away
  49. 1.5Northern California · 14080 days ago · 2 km deep · 3 km away
  50. 2.56 km W of Cobb, California · 14080 days ago · 2 km deep · 2 km away
  51. 1.64 km WSW of Cobb, California · 14079 days ago · 1 km deep · 2 km away
  52. 2.35 km SW of Cobb, California · 14079 days ago · 0 km deep · 2 km away
  53. 1.97 km ENE of Larkfield-Wikiup, California · 14079 days ago · 1 km deep · 30 km away
  54. 2.75 km SE of Hopland, California · 14078 days ago · 4 km deep · 28 km away
  55. 1.67 km NE of Larkfield-Wikiup, California · 14078 days ago · 1 km deep · 30 km away
  56. 2.56 km W of Cobb, California · 14078 days ago · 4 km deep · 2 km away
  57. 3.37 km WSW of Cobb, California · 14078 days ago · 1 km deep · 1 km away
  58. 3.07 km WSW of Cobb, California · 14078 days ago · 1 km deep · 1 km away
  59. 1.56 km WSW of Cobb, California · 14078 days ago · 0 km deep · 1 km away
  60. 1.76 km W of Cobb, California · 14078 days ago · 1 km deep · 1 km away

The first 60 of 155.

Before

  1. 1.67 km WSW of Cobb, California · 14101 days ago · 2 km deep · 1 km away
  2. 2.06 km W of Cobb, California · 14102 days ago · 2 km deep · 1 km away
  3. 2.35 km WSW of Cobb, California · 14102 days ago · 1 km deep · 1 km away
  4. 2.17 km WSW of Cobb, California · 14102 days ago · 3 km deep · 2 km away
  5. 1.65 km W of Cobb, California · 14102 days ago · 0 km deep · 1 km away
  6. 1.78 km WSW of Cobb, California · 14102 days ago · 1 km deep · 2 km away
  7. 2.67 km W of Cobb, California · 14102 days ago · 1 km deep · 3 km away
  8. 2.37 km W of Cobb, California · 14102 days ago · -1 km deep · 2 km away
  9. 3.47 km W of Cobb, California · 14102 days ago · 1 km deep · 3 km away
  10. 1.67 km WSW of Cobb, California · 14103 days ago · 3 km deep · 2 km away
  11. 1.76 km WNW of Cobb, California · 14104 days ago · 1 km deep · 3 km away
  12. 1.96 km WSW of Cobb, California · 14104 days ago · 1 km deep · 1 km away
  13. 1.66 km W of Cobb, California · 14105 days ago · 3 km deep · 2 km away
  14. 2.37 km W of Cobb, California · 14106 days ago · -1 km deep · 3 km away
  15. 1.56 km W of Cobb, California · 14106 days ago · 3 km deep · 2 km away
  16. 1.87 km WSW of Cobb, California · 14106 days ago · 2 km deep · 1 km away
  17. 1.925 km SE of Covelo, California · 14106 days ago · 4 km deep · 92 km away
  18. 2.425 km SE of Covelo, California · 14106 days ago · 5 km deep · 93 km away
  19. 1.66 km WNW of Cobb, California · 14106 days ago · -1 km deep · 4 km away
  20. 2.18 km NE of Windsor, California · 14107 days ago · 2 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc112876. Read Sat, Oct 3, 2026, 1:54 PM UTC.